diff --git a/.gitignore b/.gitignore
index ee679fb..d277b5c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,8 @@
+/pytest-mock-1.1.zip
+/pytest-mock-1.2.zip
+/pytest-mock-1.6.0.tar.gz
+/pytest-mock-1.6.2.tar.gz
+/pytest-mock-1.6.3.tar.gz
+/pytest-mock-1.7.0.tar.gz
+/pytest-mock-1.7.1.tar.gz
 /pytest-mock-1.9.0.tar.gz
diff --git a/fix-for-pytest3.patch b/fix-for-pytest3.patch
new file mode 100644
index 0000000..0b243f8
--- /dev/null
+++ b/fix-for-pytest3.patch
@@ -0,0 +1,21 @@
+diff --git a/test_pytest_mock.py b/test_pytest_mock.py
+index 1e47d0e..e54649a 100644
+--- a/test_pytest_mock.py
++++ b/test_pytest_mock.py
+@@ -176,7 +176,7 @@ def __test_failure_message(self, mocker, **kwargs):
+         stub = mocker.stub(**kwargs)
+         with pytest.raises(AssertionError) as exc_info:
+             stub.assert_called_with()
+-        assert exc_info.value.msg == expected_message
++        assert str(exc_info.value) == expected_message
+ 
+     def test_failure_message_with_no_name(self, mocker):
+         self.__test_failure_message(mocker)
+@@ -352,7 +352,7 @@ def assert_argument_introspection(left, right):
+         #       test was run by examining sys.argv
+         verbose = any(a.startswith('-v') for a in sys.argv)
+         expected = '\n  '.join(util._compare_eq_iterable(left, right, verbose))
+-        assert expected in e.msg
++        assert expected in str(e)
+     else:
+         raise AssertionError("DID NOT RAISE")